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Intervention mechanisms to reduce energy consumption of air-conditioning and illumination systems for commercial buildings
Author(s)
Lephuthing, Fusi Ernest
Date Issued
2020
Type
Thesis
Publisher
Cape Peninsula University of Technology
Abstract
This study aimed to explore the cost-effective mechanisms to reduce energy demand
consumption in SASOL Fuels Application Centre (SFAC) building in South Africa. It
focuses on the commercial facility’s total real power (kW) and reactive power (KVAR),
which together contributes to high demand (KVA) spark resulting in high demand
energy costs, which has a direct influence on the high electricity bills issued to
commercial businesses worldwide.
The demand sparks are caused by current’s instantaneous hike which as a result
caused pressure to power producer. Then, the producer issues penalties in the form
of demand charges resulting in a high electricity bill. The energy consumption
reduction of commercial buildings can be achieved through the implementation of a
power metering system to measure the total kW, KVA, KVAR and power factor.
The study presents DSM techniques as a model suitable for reduction of demand load
consumptions and demonstrates a range of energy conservation options available for
baseline reduction to contribute to lower total electricity consumption of SFAC. The
preferred method for the study was power factor improvement aimed at correcting the
current spark by discharging the set of required capacitor banks to compensate for the
demand. The power simulator software model was developed to simulate the real
power together with the desired power factor and the reduction of approximately 10%
on electricity bill was realised.
consumption in SASOL Fuels Application Centre (SFAC) building in South Africa. It
focuses on the commercial facility’s total real power (kW) and reactive power (KVAR),
which together contributes to high demand (KVA) spark resulting in high demand
energy costs, which has a direct influence on the high electricity bills issued to
commercial businesses worldwide.
The demand sparks are caused by current’s instantaneous hike which as a result
caused pressure to power producer. Then, the producer issues penalties in the form
of demand charges resulting in a high electricity bill. The energy consumption
reduction of commercial buildings can be achieved through the implementation of a
power metering system to measure the total kW, KVA, KVAR and power factor.
The study presents DSM techniques as a model suitable for reduction of demand load
consumptions and demonstrates a range of energy conservation options available for
baseline reduction to contribute to lower total electricity consumption of SFAC. The
preferred method for the study was power factor improvement aimed at correcting the
current spark by discharging the set of required capacitor banks to compensate for the
demand. The power simulator software model was developed to simulate the real
power together with the desired power factor and the reduction of approximately 10%
on electricity bill was realised.
Additional information
Thesis (MEng (Energy))--Cape Peninsula University of Technology, 2020
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